Question

(1/9)^x-5=729^x как решить
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Answer 1

Решение
(1/9)^(x-5) = 729^x
3^[-2(x- 5)] = 27^(2x)
3^[-2(x- 5)] = 3^(6x)
- 2(x - 5) = 6x
-2x - 6x = - 10
- 8x = 10
x = - 1,25